2FUA

L-FUCULOSE 1-PHOSPHATE ALDOLASE CRYSTAL FORM T WITH COBALT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.180 
  • R-Value Observed: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Refined high-resolution structure of the metal-ion dependent L-fuculose-1-phosphate aldolase (class II) from Escherichia coli.

Dreyer, M.K.Schulz, G.E.

(1996) Acta Crystallogr D Biol Crystallogr 52: 1082-1091

  • DOI: https://doi.org/10.1107/S0907444996009146
  • Primary Citation of Related Structures:  
    1FUA, 2FUA

  • PubMed Abstract: 

    The structure of the class II zinc-ion dependent L-fuculose-1-phosphate aldolase from Escherichia coli in its tetragonal crystal form has been established at 1.92 A resolution. The homotetrameric enzyme has a molecular mass of 4 x 24 kDa and follows C(4) symmetry. The structure model is exactly symmetrical, which contradicts an observed birefringence anomaly of the crystals. The four catalytic centers are located in deep clefts at the interfaces of adjacent subunits. The zinc ion is coordinated by three histidines and one glutamate in an almost tetrahedral arrangement. In contrast to numerous other catalytically competent zinc ions, there is no water molecule in the ligand sphere. Replacement of zinc by a cobalt ion caused only small structural changes. A search through the Protein Data Bank indicated that the chain fold is novel. Sequence homology searches revealed a significant similarity to the bacterial L-ribulose-5-phosphate 4-epimerase.


  • Organizational Affiliation

    Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
L-FUCULOSE-1-PHOSPHATE ALDOLASE215Escherichia coliMutation(s): 0 
EC: 4.1.2.17
UniProt
Find proteins for P0AB87 (Escherichia coli (strain K12))
Explore P0AB87 
Go to UniProtKB:  P0AB87
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AB87
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.180 
  • R-Value Observed: 0.180 
  • Space Group: P 4 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 93.7α = 90
b = 93.7β = 90
c = 42.8γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
XDSdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-10-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2011-11-16
    Changes: Atomic model
  • Version 1.4: 2024-06-05
    Changes: Data collection, Database references, Derived calculations, Other